Abstract: A computer-implemented method is used to transmit data from a first computer to a second computer using a first protocol. The computers belong to first and second computer groups. Inter-group communication is restricted to data packets with first type data. A client module of the first computer provides data packets with first and second type data. An intermediate module receives data packets from the client module and forwards data packets to a modifier module of an auxiliary computer, using a second protocol. The auxiliary computer belongs to the first computer group. The intermediate module receives modified data packets from the modifier module using the second protocol. The packets contain first type data. The intermediate module forwards the modified data packets to a protocol module on the first computer that encodes the modified data packets. The protocol module transmits encoded modified data packets to the second computer, using the first protocol.

Abstract: A computer-implemented method for communicating data between computer systems in the functions of a source computer system and of a target computer system is performed by a data modification engine in a gateway computer that is communicatively connected between the computer systems. The engine receives an original data package from the source computer system with elements that are arranged according to a pre-defined data-structure. The engine accesses a rule template that corresponds to the data-structure and that provides a plurality of pre-defined rules. The engine separates the original data package into elements, processes the elements by digitally transforming them according to the rules, combines them to a modified data package and sends the modified data package to the target computer system.

Abstract: For storing data in a data-storage structure of a server computer, an infrastructure is deployed to a server computer. The infrastructure has a forwarder module to receive data from an application and to identify a data portion, a crypto module to encrypt the data portion with a key and key control module adapted to generate and to store the key. The infrastructure is also able to process data in the opposite direction. The key is provided into the key control module upon receiving a key trigger from the client computer.

Abstract: For storing data in a data-storage structure of a server computer, an infrastructure is deployed to a server computer. The infrastructure has a forwarder module to receive data from an application and to identify a data portion, a crypto module to encrypt the data portion with a key and key control module adapted to generate and to store the key. The infrastructure is also able to process data in the opposite direction. The key is provided into the key control module upon receiving a key trigger from the client computer.